Grain-separator.



- PATENTED SEPT. 13, 1904.

E. M. KRAMER.

GRAIN SEPARATOR.

ArPLIoATIon FILED JAN. 1e. 1904.

2` sHBETssHBET 1.

N0 MODEL.

PATBNTED SEPT. 13, y1904.

E. M. KRAMER. GRAIN SEPARAIORl APPLICATION FILED 15.11.16. 1904.

2 SHEETS-SHEET 2.

NO MODEL.

NTTED STATES Patented September 13, 1904.

Trina.

PATENT GRAIN-SEPARATOR. l

SPECIFICATION forming part of Letters Patent No. 769,948, datedSeptember 13, 1904.

Application filed January 16, 19011. Serial No. 189,389. (No model.) I

To all whom, t may concern:

Be it known that I, EMIL M. KRAMER, a citizen of the United States,residing at Cissnapark, in the county of Iroquois and State of Illinois,have invented certain new and useful Improvements in Grain-Separators;and I do hereby declare that'the following is a full,

clear, and exact description of the invention,

which will enable others skilled in the art to which it appertains tomake and use the same.

This invention pertains to improvements in threshing-machines orseparators.

An object of the invention is to provide an entirely new means ofseparating the grain from the straw.

Another object of the invention is to handle the straw faster and fasteras it moves away from the vicinity of the shelling-cylinder, whereby itcan be more thoroughly cleaned. In most of the older types of separatorsthe straw in passing through is allowed to bunch and become thicker andthicker, so that it has been almost impossible to properly separate thegrain; but in my improved machine each succeeding member of theseveralmembers employed for getting the seed out travels faster than the onebefore, thus keeping the straw cleared, so that the seed may be easilyshaken therefrom and allowed to fall therethrough. I

My invention further relates to certain novel lelements used forcarrying the straw, in which the seed is more thoroughly shaken out.

A still further object is to provide a different arrangement of thevarious separating members, all of which will be properly described inthe specification, and included in the accompanying claims. Y

In the annexed drawings, Figure 1 is a sectional longitudinal elevationof the separator. Fig. 2 is a perspective View of certain members of theseparator. Fig. 3 is an end View of a straw-carrier, and Fig. Li is anend view of a straw-'carrier and beater in a combined form.

A designates the separator-bodyvmounted on the wheels B, as in ordinarypractice. yAt C is the customary grate, and I) represents therearwardly-projecting fingers, all of which is sufficiently wellunderstood to require no further description. Above the said grate C isthe shelling-cylinder E, and rearward of this is a beater F, arranged torevolve much slower than the cylinder in order to retard the movement ofthe straw suiiiciently to permit a second beater, Gr, toward the rear,to catch the straw and tear it to pieces, the latter beater revolvingmuch faster than F. Said beater G is pro- `.vided with long fingerswhich project between the ingers of the grate, and thus easily take holdof the straw to throw it upon an endless carrier. (Shown inFig. 2.) Thismember consists of three rollers H, arranged in a triangle,substantially as shown in the drawings, upon which run two end belts I,and upon the said belts are secured at intervals slats J, provided withspikes K, so placed as to project upward at an angle on the forward runof the belts I, so

that the straw from the beater G will be easily caught thereon. Thedirection of movement .of the carrier thus constructed is from bottom totop, as indicated by the arrow. Above and behind the carrier is astop-board L, forming a pocket with the top of the separator.

In the angle thus formed is secured a series,

the'spikes as it is carried toward the beater.

By being thus torn by the fingers the straw is reduced in length and thegrain more freely liberated by this rough handling'.

Below the beater N and at the rear of the carrier H I J is anupwardly-inclined carrier comprising an upper and lower shaft P, eachcarrying a series of two different-sized beltpulleys, the larger beingindicated by Q, and the smaller by R. Preferably the pulleys arearranged as shown in Fig. 3, with the larger and smaller alternating.The same disposition of these wheels is the same on both the upper andlower shaft, and a belt S runs over the large ones and a belt T over thesmall ones. The belts are provided with slats U,

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by which the straw falling upon them from the beater N and carrier H I Jwill be carried to the top. The resulting operation by reason of thepeculiar arrangement of this carrier is that the straw being carriedfaster on the belt carried by the large pulleys than on the belt on thesmall ones is agitated and torn in a very thorough manner by the time itreaches the top and is delivered upon the final separating memberbeneath. This last member consists of two shafts V, each having a seriesof eccentric Wheels W thereon arranged in pairs set opposite each other,as shown in Fig. 4. The several pairs of eccentrics carry the belts X,provided with slats Y. Each shaft carries a sprocket-wheel 2, but one ofwhich is shown, (see Fig. 4,) by which the shafts are made to revolve inthe same relation at all times, so that each corresponding pair ofeccentrics revolve together to retain the several belts parallel witheach other. It will be seen that motion imparted to the shafts V,therefore, will constantly turn the belts progressively around theeccentrics and at same time cause the latter to have a cycloidalmovement. The action of the belts will now be a progression combinedwith a substantially vertical movement or an upand-down motion verticalto the stretches of the belts. With the belts several times longer thanthe circumference of the eccentrics the straw after falling thereon willbe tossed vigorously up and down several times in its movement towardthe top. Evidently the longer the belts the greater the number ofvertical movements will be. A reduction in the diameters of theeccentrics would also produce the same result. At the bottom of theseparator the lusual grain-pans 3 and 4: are provided, be-

neath which are the fans 5 and 6, described in a former application ofmine.

As outlined in the beginning of this specication, it is the intent tohandle the straw faster and faster as it proceeds through the machine.The beater F, however, holds the straw back while the beater G, whichrevolves much faster, tears it away from said beater F. The carrier H IJ now elevates the straw fast enough to take all that is cast upon itfrom the said beater. Now, in order'to give an idea of the manner inwhich the straw is subsequently handled it may be well to give therelative speeds of the various members which receive it. The saidcarrier H I J makes in the neighborhood of one hundred and twentyrevolutions per minute, while the beater N revolves at two hundred andtwenty-five per minute. The carrier P Q R moves about one hundred andsixty revolutions per minute, while the agitator V W has three hundredrevolutions.

In machines of this class it has been customary to allow the straw tobunch after leaving the cylinder, and when in this condition it isimpossible to properly separate the grain; l

but, as before stated, by moving the straw faster and faster as itleaves the vicinity of the cylinder it is easily freed of all grain, andby employing the peculiarly-constructed members described the work isstill more thoroughly accomplished, the straw being entirely cleaned ofthe grain before it is ejected.

The beater G in throwing the straw upon the carrier H I J must, as amatter of course, cast more or less liberated grain into said carrier,and this will naturally pass through. Therefore I provide a stop-board7, which stops the flight of the said grain, which falls upon the pans 3and 4 described. The beater G revolves more than twice as fast as theretarding beater F, so that the straw will be thoroughly torn andscattered. 5

The member V W answers at once as a shaker, beater, and raddle, andthereby accomplishes what several elements are provided for in otherforms of separator.

The advantages of my improved separator are at once seen, and it will beevident, in addition to what has been stated, that since the eccentricsare oppositely disposed. on their shafts the weight on one side balancesthat of the other, thus avoiding any vibration usually present inseparators by the use of the old form of shakers.

I claiml. In a separator, the combination of the shelling-cylinder, aretarding-beater behind the same, a beater behind the first adapted torevolve at a higher rate of speed than the first, a carrier behind thesecond described beater and adapted to elevate the straw from the secondbeater, a third beater above and behind the carrier the same adapted totear the straw from the carrier by a faster revolution than the carrierand means in the rear of said third beater and the carrier for furtherseparating the grain.

E2. The combination of a cylinder, a concave and grating, with a beaterabove the grating in the rear 'of the cylinder, a second beater behindthe iirst and below the grating, members of said beater extending upthrough the grating, an elevating-carrier behind the grating, a beaterinclosed in a grating above and in the rear of the carrier, members onthe beater extending through the grating, and straw-carrying means inthe rear of the beater and carrier substantially as described.

3. The combination of a cylinder, a concave and grating, with a beaterabove the grating in the rear of the cylinder, a second beater behindthe first and below the grating, members of said beater extending upthrough the grating, an elevating-carrier behind the grating, a beaterinclosed in a grating above and in the rear `of the carrier, members onthe beater extending through the grating, and straw-carrying means inthe rear of the beater and carrier and carried by two series ofalternately large and small pulleys of corresponding size substantiallyas described.

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4. The combination of a cylinder, a concave and grating, with a beaterabove the grating in the rear oi' the cylinder, a second beater behindthe first and below the grating, members of s aid beater extending upthrough the grating, an elevating-carrier behind the grating, a beaterinclosed in a grating above and in the rear of the carrier, members onthe beater eX- tending through the grating, and straw-carrying means inthe rear of the beater and carrier comprising two series of alternatelylarge and i small pulleys, slatted belts running upon the pairs ofpulleys of corresponding size, a strawshaker below and in the rear ofthe said carrier comprising two shafts, two series ofeccentrically-mounted pulleys on each shaft, each series vbeing set onthe shaft opposite the other series and slatted belts carried by thecorrespondingly-mounted pulleys said pulleys and belts having acycloidal movement to agitate and carry away the straw substantially asdescribed.

In testimony whereof I ax my signature in presence of two witnesses.

- EMIL M. KRAMER.

Witnesses: f ,A

EUGENE KRAMER, JOHN STAUTER.

